Update on putting with this method. It seems to work.
Not only am I putting with my elbows pressed lightly against the ribs, but I am using a spine motion for the stroke. This seems to let me putt as far as I want, but control the distances much better.
Putts per round dropped by at least 4 strokes, and it feels a lot more secure, and feel like I can focus more on the putting keys.
I also thinking of using a similar stroke for close up chips (5 to 20 yards).